diff --git a/content/notes/24-protection-of-file-systems.md b/content/notes/24-protection-of-file-systems.md
index b51cf3fe7..2e33b3118 100644
--- a/content/notes/24-protection-of-file-systems.md
+++ b/content/notes/24-protection-of-file-systems.md
@@ -3,7 +3,7 @@ title: "24-protection-of-file-systems"
 aliases: 
 tags: 
 - cosc204
-- lectures
+- lecture
 ---
 
 # protection model